System and method for ground fault detection using hall effect sensors

A device, comprising:

• one or more components;
• a multi-phase system configured to furnish electrical power to the one or more components;
• a plurality of Hall Effect sensors configured to detect phase currents associated with at least one portion of the multi-phase system;
• a plurality of phase current measurement circuits connected to the Hall Effect sensors and configured to measure the phase currents detected by the Hall Effect sensors;
• and
• a ground fault detection circuit connected to the Hall Effect sensors and configured to measure a summation of the phase currents detected by the Hall Effect sensors,
• wherein each of the phase current measurement circuits includes an operational amplifier configured to receive a current sense signal from a respective one of the Hall Effect sensors,
• wherein each of the phase current measurement circuits further includes an active rectifier and a low pass filter in series with the operational amplifier.

A method of current measurement and ground fault detection, comprising:

• detecting phase currents with a plurality of Hall Effect sensors;
• measuring the phase currents detected by the Hall Effect sensors with a plurality of phase current measurement circuits;
• and
• measuring a summation of the phase currents detected by the Hall Effect sensors with a ground fault detection circuit,
• wherein each of the phase current measurement circuits includes an operational amplifier configured to receive a current sense signal from a respective one of the Hall Effect sensors,
• wherein each of the phase current measurement circuits further includes an active rectifier and a low pass filter in series with the operational amplifier.